Yarn fastening means for spools



March 2l, 1950 R. M, HOOD 2,501,515

YARN FASTENING MEANS FOR SPOOLS Filed April 29, 1947 Patented Mar. 2l, 1950 UNITED STATES PATENT OFFICE' Application April 29, 1947, Serial N0. 744,627

1 Claim. (Cl. 242-125) This invention relates to an improved spool for use on uptwisters, or as a warping spool and the like, and comprises a barrel and a head on each end of the barrel, with one of the headsv being slotted, together with clamping and cutting means resiliently mounted on the outer surface of one of the heads whereby the yarn, before a winding operation, can be deposited on the barrel of the spool and passed through a slot in one-of the head portions and passed between a clamping member and the surface of the head and clamped in position, and with said clamping member having inturned barbs adapted to tit into suitable bores or cavities in the spool head, and whereby when the yarn or thread is clamped in position it can be given a quick jerk which will cause one of the barbs against which it is placed to sever the extending end.

It is therefore an object of this invention to provide in an uptwisting spool and the like having a barrel portion and two head portions, a disk member resiliently pressed against the exterior surface of one of the heads and the yarn end is adapted to be passed between the resiliently mounted disk and the surface of the spool head to clampingly hold the same in position and said resiliently mounted disk having one or more intumed barbs which are adapted to cut the extending end of the yarn as it is clamped in position.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which Figure 1 is an elevation of my improved spool with portions thereof broken away;

Figure 2 is an end view of Figure 1 taken along the line 2-2 in Figure 1;

Figure 3 is a vertical sectional view through the barrel portion of the spool and taken along the line 3-3 in Figure 1;

Figure 4 is a longitudinal sectional view taken substantially along the line 4-4 in Figure 2.

Referring more specifically to the drawings, the numeral I indicates the barrel portion of the spool having disks or heads II and I2 secured on the ends thereof. One of the disks, such as I2, is adapted to have one or more slots such as I3 and I4 cut therein. The barrel portion I0 has a plurality of longitudinally extending bores which extend from one end to the other. Some of these bores are penetrated by shafts or rivets I5 which also penetrate coinciding bores in the heads III and II and are expanded or branded as at IB at each end thereof to securely fasten 55 the heads or disks II and I2 to the barrel portion Ill.

The main body of theA spoo1 also has a longitudinally extending bore I8 extending centrally thereof from one end to the other and in the ends of which suitable bushings I9 are mounted and which extend substantially from the outer surfaces of each of the disks or heads -II and I2 and serve-in a conventional manner for guiding or holding the spool in position during an uptwisting operation.

The barrel $0 also has a pair of bores 20 and 2I extending from end to end thereof which are not occupied but are for the reception of barbs or cutting means associated with the disk on the end of the spool as will be presently described. These bores 20 and 2| could be small cavities near the barbs and need not extend entirely through the barrel. The barrel Il) also has a pair of longitudinally extending bores 22 and 23 in which tension springs 24 and 25 are mounted. In one end of these bores 22 and 23 are adapted to be positioned suitable spring anchors 26 and 21 which have a hooked portion at their inner ends to which one end of the tension springs 24 and 25 respectively are secured.

Adapted to surround the bushing I 9 at one end of the spool is a cup-shaped annular disk 30 which has a centrally disposed hole 3| adapted toloosely t around the bushing I9. The disk 30 has a peripheral inwardly sloping portion32 adapted to guide an end of a strand of yarn 39 inwardly between the inner face of the disk 30 and the outer face of the spool head I2.

The disk 30 has a pair of holes disposed 180 apart into which are fitted suitable spring anchors and 36 which are hooked on their inner ends for engaging the other ends of the tension springs 24 and 25. Thus the tension springs hold the disk 30 in resilient engagement with the exterior surface of the spool head I2. The disk 30 has a pair of inwardly directed barbs 31 and 38 which are adapted to fit into the bores 20 and 2|.

It is therefore seen that at the beginning of a winding operation the yarn 39 can be directed on the inside of the spool head I2 and through one' of the slots I3 or I4 and passed between the disk 30 and the outer surface of the spool head I2 and pulled inwardly until it engages one of the barbs 31 or 38 and then a slight jerk can be given to the extending end 40 of the yarn and it will be cut by one of the barbs 31 or 38, thus leaving no protruding end.

If desired, when the winding of the spool has been completed, the extending end of the yarn could likewise be passed through one of the slots i8 or il and likewise secured between the disk Il and the outer face of the spool I2.

It is thus seen that the yarn 39, after being placed on the inside of the spool head I2, can be passed through one of the slots I3 or Il and slid in between the disk 30 and the outer face of the spool head I2 until it engages the barb 38 at which time it can be given a slight jerk and the barb 3l will cut the end which is shown in Figure 2 and designated by reference character Il.

In the drawings and speciiication there has been set forth a preferred` embodiment of the invention, and although specic terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claim.

I claim: i

In a spool having a barrel and head portions l secured to each end of the barrel, said barrel having hub members extending from the central end portions thereof, an annular disk member loosely mounted around one of the hub portions, a pair of bores extending longitudinally of the barrel portion and through the head portions and each having a tension spring mounted therein, means anchoring one end of the tension springs to one of the head portions. a pair of spring anchors extending through the annular disk member and anchored to the other ends of said tension springs to resiliently hold the annular disk member against the outer face oi one of the head portions of the spool, said barrel having a pair of cavities in the end thereof adjacent the annular disk member and a pair o! inwardly bent barbs struck from the annular disk member and extending into said cavities. the head member associated with the .annular disk member having a radially disposed slot therein whereby an end of yarncan be deposited on the spool barrel and passed through said slot and passed between the outer surface of the spool head and the annular disk member until it engages one of the' barbs, whereupon a slight jerk will sever the extending end of the yarn when it is impinged against one or the barbs.

ROY M. HOOD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

